_____ is (are) the buying and selling of U.S. government securities.

Opportunity cost is best defined as:

a. the sum of all alternatives given up when a choice is made. b. the money spent once a choice is made. c. the highest-valued alternative given up when a choice is made. d. the difference between the cost price and the selling price of a good. e. the cost of capital resources used in the production of additional capital.

Recall the Application about the effects of increasing state level Earned Income Tax Credit (EITC) on child health in the United States to answer the following question(s).Recall the Application. According to the study cited in the Application, does EITC improve income distribution?

A. Yes, aside from increasing income for low-income households, it improves the health levels of the worker and their families. B. Yes, EITC encourages workers to sop working and get an education in the health industry. C. No, only the politicians get rich because of EITC. D. No, the level of spending on EITC is so low it has no measurable effects on incomes of the poor.